21- ASCE-7-P-delta Effects Part-1-Main Concept- Dr. Noureldin

In highrise building design, important secondary moments and additional story drifts can be developed in the lateral-force-resisting system by P-delta effects. P-delta effects are the result of the axial load P in a column being moved laterally by horizontal displacements, thereby causing additional secondary column and girder moments.

In this video, I will explain about:
P-delta concept
The geometric stiffness
The stability coefficient


The intent of Section 12.8.7 in ASCE-7 is to determine whether P-delta effects are significant, and if so, to modify the strength and stiffness of the structure to account for such effects.

Key words:
seismic design of structures
earthquake engineering
earthquakes
dynamic analysis
Non-linear static analysis
Pushover analysis
Response Spectrum
Non linear dynamic analysis
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